Chuck.



C H U C K (Application filed Feb. 10, 1900.)

(Hu Model.)

lllll YZ/faire;

guaine/tja lUNrra JAMES BLAMIRE, OF PARSONS, PENNSYLVANIA.

CHUCK.

SPECIFICATION forming part of Letters Patent No. 663,325, dated December4, 1900.

Appiimmniedretmmy10,1900. seriairamsa ditmaal.)

To tZZ whom, t may con/cern:

Be it known that I, JAMES BLAMIRE, a citizen of the United States,residing at Parsons, in the county of Luzerne and State of Pennsylvania,have invented a new and useful Chuck and Enlarged Sleeve, of which thefollowing is a specification.

My invention relates to chucks and sleeves for holding cranked axles ina lathe for turning the arms; and it has for its object to produce asleeve and chuck into which the axle can be quickly inserted and securedand one which can be readily adapted for axles of different lengths. Iaccomplish this object by the construction shown in the accompanyingdrawings, in which the same reference-numerals indicate correspondingparts in each ofthe views in which they Occur, and in Which- Figure 1 isa longitudinal sectional View of my improved sleeve and chuck with anaxle in position. Fig. 2 is an end View of the same. Fig. is aperspective detail view of one end of my improved chuck and sleeve, theface-plate of the chuck being removed and placed at a short distance infront of the same. Fig.4 is a broken sectional detail view, and Fig. 5is a broken perspective view of parts of the jaw of the chuck separate.

Referring moreparticularly to the drawings, 1 indicates a sleeve, Whichis suitably mounted in bearings 2'by means of grooved bands or collars 3near its ends. Each end of the sleeve is made conical, as shown at 4,and slotted longitudinally, as shown at 5, for the reception of thecrank end 6 of the bed 7 or central portion of the axle, as shown inFig. 1. Eachv end is further provided with a ange 8, to Which the chuck9 is secured in any suitable manner, as by means of bolts 10.

The chuck is preferably of the same size as the flange and is providedWith a radial slot 11, that registers With a corresponding slot 12 inthe flange. Arranged at rightangles to each other and extending from thecentral opening 13 in the chuck are three perforations 14, the outerends of Which are screwthreaded and the inner portions are angular incross-section. The face of the chuck is recessed to the slotted portionsof the openings in the chuck, as shown at l5, and the removable plate 16is fitted therein. A longitudinal sliding jaw 17 is seated in each ofthe slotted portions of the perforations 14, the inner end of each ofwhich is provided with a head 18, and the outer end is provided With aslotted recess 19. Seated in said recess'is a screw 20, the stem ofwhich projects through the longitudinal opening of the recess and entersthe end of an adjusting-screw 21, the inner end of which is reduced, asshown at 2, to fit Within the recess in the jaw 17. The outer end ofsaid adj Listing-screw is squared for lthe reception of a Wrench orother means for rotating it in the usual manner.

The sleeve 1 may be rotated by means of Ya collar 23.upon its centralportion for the reception of a driving-belt, or one of the collars 3 maybe extended inwardly and provided with teeth 24, which are engaged bythe teeth of a suitable gear-Wheel, the belt and gear-wheel not beingshown, as they form no part of my invention.

In operating myimproved sleeve and chuck the axle is insertedlongitudinally from one end until the arm portion 25 projects beyond thechuck at the opposite end of the sleeve. The jav'vs 17 of the chuck arethen forced inward until they engage With the portion of the axle to therear of the arm and hold it perfectly rigid, With the axis of the armcoinciding with the axis of the sleeve and chuck. The opposite end ofthe axle will project from the other end of the sleeve and can besteadied by means of the jaws in the chuck at that end. After the axlehas been thus secured Within the sleeve and chuck the sleeve is rotatedand the arm is turned down and screwthreaded in the usual manner, themechanism for performing this operation not being shown, as it forms nopart of my invention. After one end of the axle has been thus treatedthe axle is removed from the sleeve, turned end for end, and reinsertedand secured and operated upon as before.

By constructing the chuck and sleeve as above described it is evidentthat the axle can be bent and all of the rough work upon IOO can beformed of such thickness that it can be utilized for the chuck, and'thereby avoid the necessity of forming the chuck separate and securingit to the flange. I also reserve to myself the right to make such otherchanges and alterations as Will come Within the scope of my invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States, is-

1. In a machine for turning cranked axles, the combination with acylindrical sleeve, each end of Which is conical and slottedlongitudinally, a slotted chuck upon each end provided Withradially-located jaws, the inner portion of each jaw being angular incross-section and the outer portion being cylindrical and screw-threadedand means for rotating,` said sleeve, substantially as described.

2. In a machine for turning cranked axles, the combination, with acylindrical sleeve, each end of which is conical and slotted1ongitndinally, of a slotted chuck on each end, provided Withradially-located jaws, the inner portion of each jaw being angular incross-section and having its inner end provided with a head and itsouter end provided with a slotted recess, and the outer endof the jawbeing cylindrical and screw-threaded, a screw in the recess in the innerportion of the jaw, the stem of which engages with the inner end of theouterportion of the jaw, and means for rotating the sleeve,substantially as described.

JAMES BLAMIRE..

Witnesses:

W. J. GEEN, JOHN HALL.

